Siemens SINUMERIK 840D sl Series Diagnostics Manual page 349

08/2005
Check the interface signals "Servo enable" (DB31 - 48, DBX 2.1) and "Pulse enable"
(DB31 - 48, DBX 21.7), for example with the PLC status display in the DIAGNOSTICS
operating area. Check the encoder selection (for axes) as well as other signals enabling
motion such as terminal 663 depending on the drive type used, and so on.
When the terminal enables of the drive have failed, trace back the wiring or hardware
function (for example relay function) or proceed as per the relevant drive documentation.
With SAFETY: With active actual-value linkage, output of the error message on the slave
axis can be prevented by increasing MD 36060 $MA_STANDSTILL_VELO_TOL (default
value is 5 mm).
Program Con- Clear alarm with the Delete key or NC START.
tinuation:
21613
Axis %1 measuring system changing
Parameters: %1 = Axis name, spindle number
Definitions: The measuring system for this axis is changing.
Reactions: - Alarm display.
Remedy: -
Program Con- Alarm display showing cause of alarm disappears. No further operator action necessary.
tinuation:
21614
Channel %1 axis %2 hardware limit switch %3
Parameters: %1 = Channel number
%2 = Axis name, spindle number
%3 = String (+, - or +/-)
Definitions: The VDI signal "Hardware limit switch" (DB 31 - 48, DBX 12.0 or DBX 12.1) has been set
at the NC/PLC interface.
Reactions: - NC Start disable in this channel.
- Alarm display.
Remedy: Please inform the authorized personnel/service department.
1. With axes that have already been referenced, the software limit switch 1 or 2 should
respond before the hardware limit switch is reached. Check MD 36110
POS_LIMIT_PLUS, 36100 POS_LIMIT_MINUS, 36130 POS_LIMIT_PLUS2 and 36120
POS_LIMIT_MINUS2 and the interface signal for selection of 1st/2nd software limit switch
(DB 31 - 48, DBX 12.2 and 12.3) and correct if necessary (PLC user program).
2. If the axis has not yet been moved to the reference point, it is possible to depart from
the hardware limit switch in the opposite direction in JOG mode.
3. Check PLC user program and the connection from the switch to the PLC input module,
provided the axis has not yet reached the hardware limit switch at all.
Program Con- Clear alarm with the RESET key. Restart part program
tinuation:
21615
Channel %1 axis %2 taken from traverse mode to follow-up mode
Parameters: %1 = Channel number
%2 = Axis name, spindle number
Definitions: This axis has been taken from traverse mode and put into "Follow-up" mode, for instance
because the pulse enable for the drive has been reset.
Reactions: - NC Start disable in this channel.
- Interface signals are set.
- Alarm display.
- NC Stop on alarm.
Remedy: -
© Siemens AG, 2005. All rights reserved
SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
Overview of Alarms
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